Map-holder



(No Model.)

1?. B. GINN.

MAP HOLDER.

No. 246,497. Patented Aug. 30,1881.

Y WlTNES ES INVENTOR W YQMWM TINTTED STATES PATENT OFFICE.

FREDERICK B. GINN, OF CHICAGO, ILLINOIS.

MAP-HOLDER.

SPECIFICATION forming part of Letters Patent No. 246,497, dated August30, 1881.

Application filed May 14, 1881. (No model.)

To all whom it may concern Be it known that I, FREDERICK B. GINN, ofChicago, in the county of Cook and State of Illinois, have invented anew and valuable Improvement in Map-Holders; and I do hereby declarethat the following is a full, clear, and exact description of theconstruction and operation of the same, reference being had to theannexed drawings, making a partof this specification, and to the lettersand figures of reference marked thereon.

Figure l of the drawings is a representation of a vertical sectionlooking toward plate B. Fig. 2 is a vertical section looking towardplate A; and Fig. 3 is a detail view.

This invention relates to improvements in devices for holding maps.

The invention consists in the construction hereinafter set forth.

In the drawings hereto annexed, A and B are two metal plates, A havingholes a, forming closed sockets; B having the holes I), with mouths andthe entrances b flaring outward leading to the holes, forming opensockets. Beads may be formed around the edges of the holes on the innerfaces of the plates.

The maps are placed on rollers 0, these latter having ends adapted tothe sockets to and I). The open sockets b are smaller than the body ofthe rollers, and these latter have reduced trunnions 0, so as to form ashoulder, c, which comes just inside the sockets.

E is a box having in its bottom the slits e and several holes, 6. Theplates A and B are fastened to the ends of this box within. The rollerswith the maps are put in place, the ends of the latter coming throughthe slits e. (lords for rolling the maps pass through the holes 6.

If desired, the cords may be dispensed with, and spring-pawls or otherdevice he used.

Any desired number of sockets can he made in the plates, and so arrangedthat the case will be filled when all the maps are rolled up.

- I claim 7 As a means for holding maps ready for use, the box E, havingthe bottom slit-s e and holes 6', in combination with plate A, havingholes a, forming closed sockets, plate B, having holes b, with months 0and flaring entrances b, forming open sockets, and rollers 0, havingreduced trunnions c, fitting said open sockets, substantially as setforth.

In testimony that I claim the above I have hereuntosubscribed my name inthe presence of two witnesses.

FREDERICK B. GINN.

Witnesses ORVILLE A. BREWER, EMMA S. BLoon.

